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Stephen Hawking Has Died

World-renowned physicist Stephen Hawking has died at the age of 76. Born in Oxford, England, Hawking became famous for his work on black holes, cosmology and quantum gravity – his contributions to science spanned more than four decades.

He also wrote many books on those subjects, including the 1988 best-seller "A Brief History of Time," which gives an account of the creation of the universe. He was a professor of applied mathematics and theoretical physics at Britain's Cambridge University for decades. Hawking was married and divorced twice. He and his first wife had three children.